langchain-openai==1.6.6

What moved

Changes since langchain-openai==1.6.5 release(openai): 1.6.6 ( #40800 ) fix(openai): raise on error events in stream path ( #40791 )

Why it matters

Filed as a launch filing from LangChain, 2026-09-24.

On the record

• Filed from the LangChain official RSS on 2026-09-24.
• Primary source host: github.com.
• Changes since langchain-openai==1.6.5 release(openai): 1.6.6 ( #40800 ) fix(openai): raise on error events in stream path ( #40791 )